Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AN366DF428 found under Nut Self Locking Plate by Aeronautical Standards Group. The National Stock Number assigned to this part is 5310004973839, and the Federal Supply Class is 5310 Nuts And Washers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like AN366DF428.